Hatchway



(No Model.) 2 sheets -Sheet 1;

J. E. KAISS HATOHWAIY. No. 375,072. Patented Dec. 20, 1887.

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J. E. KAISS.

(No Model.)

HATOHWAY.

No. 375,072. Patented Dec. 20, 1887.

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N. PETERS, Photn-Lflbo nphw. Washington I10.

UNITED STATES PATENT OFFICE.

JOHN E. KAISS, OF BALTIMORE, MARYLAND.

HATCHWAY.

SPECIFICATION forming part of Letters Patent No. 375,072, dated December 20, 1887.

Application filed May 8, 1886. Serial No. 201,547. (No model.)

To all? whom it may concern.-

Be it known that I, JOHN E. KAISS, of Baltimore city, Maryland, have invented certain new and useful Improvements in Automatic Hatchways and Elevators, of which the following is a specification, reference being had to the accompanying drawings, forming part hereof, in which Figure 1 is a front elevation of my invention. Fig. 2 is a front view of the wall with the elevator removed, showing the parts of my mechanism attached to the wall. Fig. 3 is a vertical elevation of the rear of the elevator with the wall removed, showing the parts of my mechanism attached to standards.

Like letters of reference indicate similar parts in all the figures.

My invention consists in providing an automatic hatchway-door and elevator which will not easily get out of order, and in case of breaking of any of the parts thereof by accident can be readily, easily, and cheaply re paired by any ordinary workmam'as its simplicity and durability, as well as cheapness, render it more adaptable than those now in use; and it consists in the peculiar construction, arrangement, and combination of the several parts, as will be fully hereinafter described.

Referring to the drawings, A is ablank wall in rear of the hatchway, and to which several of the parts of the operating devices are attached, the said parts being attached to either the front or rear of the uprightstandards B, in any well-known manner, when the hatchway is located in the center of the building or too far removed from the wall to be conveniently adapted to be attached to the wall, without in the least departing from the spirit of my invention.

B B are the upright or standards. 0 G are tongues fitting into the grooves (not shown) in the sides of the elevator. In fact, the elevator is the usual well-known elevator andhatchway-doors, and for the purposes of this specifition need not be further described.

I now come to a description of my newlyinvented mechanism for opening and closing automatically the hatchway-doors by means of the elevator.

D is a crank-shaped plate located upon wall A, having upon its inner end a ball, D. d is a rod extending in a straightline frontward to the standard B, the front end of which is round and fits loosely into a plate, cl, rigidly affixed to the rear part of standard B. i

E is an upwardly-curved arm located near the standard B, and secured to the rod d in some suitable manner.

F is a rod pivoted to the outer and uppe end of crank-plate D, extending diagonally across the face of the wall A from right to left until it meets with the lower end of a crankplate, f, to which it is loosely pivoted. The upper part of crank-plate f is journaled on the square part next the wall of another rod, d corresponding with red d on the righthand side. At the front end of rod d, and next to and in the almost immediate rear of standard B on the left-hand side of the hatchway, is another upwardly-curved arm, E, having its bearing on a square part of the rod (1 next to the rear of standard B, the front end of this rod d having its bearing in a round hole in a plate, d, rigidly attached to the rear side of standard B. The upper ends of arms E E are bent, respectively, toward the standards B B, through which is bored an eye (not shown) for the free passage of rods 6 c, said rods having their bearings at both their ends, respectively, rigidly affixed to the under side of their respective hatchway-doors G G, the said doors being hinged in any well-known manner, and constructed so that when closed they will fit snugly flush with the upper face of the floor. G G are recesses cut into the inner sides, respectively, of the standardsBB.

H and H. are the ordinary elevator and floor thereof. h is a roller attached to the rear part of the lower end of the elevator pivotally, and h h are two individual rollers loosely pivoted to the rear and upper part of the elevator.

I is a curved arm extending downward and loosely pivoted to the wall A upon a suitable bearing affixed rigidly to the wall in any wellknown manner. Upon the outer end of the bearing is pivoted a rod, 1, extending downward and slightly inward until it meets with crank D, to which it is pivoted.

The operation of my device will now be described.

The elevator beingin its normal position, as

shown in dotted lines in Fig. l-to wit, at the bottom-and it is desired to hoist the elevator with its freight, power is applied in any wellknown manner to the elevator, when the rollers h h bear hard up against the arms E E, which, as the elevator ascends, causes the hatch way-doors G G to be gradually opened and fall back into the recesses G G when the top ofthe grooves (not shown) in the elevator-sides passes alongup upon the tongnesG Gand when sufficiently far up the doors, by the weight of ball D, fall gradually closed, as seen in Fig. 1. Simultaneously roller It strikes against the lower portion of curved arm I and travels upon and around the same, gradually allowing the slow closing of the door G G until it passes away up and above the curved arm I, when the doors are entirely closed. hen it is desired to descend the elevator, it is allowed of its own weight to gradually come down, and in doing so roller it upon the lower and rear part of the elevator strikes hard up against the curved arm I and presses it downward and backward, thereby causing the doors G G to be gradually and entirely opened backward into the recesses G G by means of the rod I pulling the crank D,with its ball D, upward, which causes the arms E E to push gradually the doors G G into a fully-opened position, thereby admitting the free passage downward of the elevator H, guiding itself and held in position by means of the vertical grooves (not shown) at the lower part of the elevator touching upon and sliding down on the tongue 0, located within the inside of the framework or standards B,until it reaches its normal position. (Shown in dotted lines in Fig. 1.)

\Vhen the top of the elevator has passed sufficiently far down, the doors begin to gradually close themselves until they are shut entirely, being assisted in this operation by means of ball D upon crank D, being of suffioient weight to cause rod F to press against crank-platef, for the purpose of regulating the descending of the arm E, at the same time also controlling likewise the arm E upon the crank-plate D, so that the doors G G, as hereinhefore described,will not fall suddenly closed, but close themselves gradually.

By this arrangement of mechanism but one hatchway-door G may be employed,which,being properly constructed,may be operated by the one lower lever, E, thus dispensing with the second lower lever,E, and the connectingrod F. I prefer having to use the two doors G G, as herein set forth.

Having thus described my invention, what I elainnand desire to secure by Letters Patent of the United States, is

1. In an elevator-hatchway,the combination of the hatch-doors G G, the curved levers E E, placed below the doors G G, the crankplate D, the rod d, the rod (1, the rod F, arranged to cause the arms E E to move in unison, and the lever I, placed above the doors G G and provided with the rod 1, for com muuicating the necessary movement to the levers E E, substantially as shown, and for the purpose set forth.

2. In an elevator-hatcl1way,the combination of the elevator H, the doors G G, the levers E E, placed below the doors G G, and connected by the rod F, the lover I, placed above the doors G G and provided with the rod 1, for communicating motion to the lower levers, E E-,the crank-armf, the red (I, and the crank plate D, having the counterpoise D thereon, for the purpose set forth.

JOHN E. KAISS.

W'itnesses:

J. Mason Goszmm, JNO. 'l. hIADDOX. 

